hadley



' 2 Sheets-Shet 1. H. W. HADLEY 81; W. L. GROUT.

SHUTTLE FOR SEWING MACHINES. No. 345,682. Patented July 20, 1886.

(No Model.)

N. Prrzns. Ppowmhn m mn Washington. D. c.

- .(No Model.) 2 Sheets-Sheet 2.

H. W. HADLEY & W.- L. GROUT. SHUTTLE FOR SEWING MACHINES.

No. 345,682. Patented July 20, 1886.

f9 mi rw n N. vcrzns Phnwumo m hur, Washington a. c.

UNITED STATES PATENT QrrrcE.

HORACE \VEBSTER HADLEY AND VILLIAM L. GROUT, OF ORANGE, MASS.

SHUTTLE FOR SEWING-MACHINES.

EPECIFICATION forming part of Letters Patent No. 345,682, dated July 20,1886.

Application filed September 7,1885. Serial No. 176,344. (No model.)

To all whom, it may concern.-

Be it known that we, HORACE WEBs'rER HADLEY and WILLIAM L. GRoUT, bothof Orange, county of Franklin and State of Massachusetts, have inventedan Improvement in Shuttles for Sewing-Machines, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like letters on the drawings representing like parts.

This invention relates to that class of shuttles which is supported by ashuttle-carrier and is oscillated in a circular race.

The improved shuttle to be herein described and claimed is composed ofan elongated or elliptical shell and an elongated bobbin-case ofpeculiar shape, the latter being held in place in the shell by apeculiar latch.

Figure 1 in front elevation represents a shuttle-raee containing ashuttle embodying the invention to be herein described; Fig. 2, alongitudinal section of the shuttle; Fig. 3, a left-hand end elevationof the shuttle, viewing it from Fig. 1; Fig. 4, a top or plan view ofthe bobbin-case removed; Fig. 5, an under side view of Fig. 4; Fig. 6, afront elevation of the shell alone. Fig. '7 is a section of Fig. 1 onthe dotted line 00 ac, the bobbin-case being removed; and Fig. 8 is aperspective view of the shuttle-shell, the bobbin-case being removed. a

The circular shuttle-race a, its cap a, held in place by screws a", theshaft a, and the carrier a", to receive upon it and oscillate theshuttle in the race, are of usual construction.

The elongated or elliptical shuttle consists of the shell bandbobbin-case c. The shell, shaped substantially as shown in the drawings,to form a heel, b, and a point, If, is provided with a guard or backplate, I). The shell I) is provided with an elongated slot at one end,which is a pocket or notch, 3, for the reception of the lip c of thecylindrical bobbin-case c, and with a slot at 4 for the reception of oneof the journals of the spool or bobbin (I, inserted in thesaid'bobbin-case, as best shown in Figs. 1 and 2. The bobbin-case isprovided with a thread-controlling bracket, 0', having a slot, 2,preferably curved, and located substantially in line with the center ofrotation of the shaft a and shuttle, the said bracket being extendedradially from the bobbin-case in the direction of its length. Thebobbincase is provided at one side with a slot or recess, 0 to beengaged by the prong 5 of a latch, e, pivoted to the shell at 6, one endof 't-he latch being extended out beyond the face of the shell, asshown, to form a thumb-piece by which to turn the said latch when it isdesired to remove or replace the bobbin-ease, a spring, 8, normallyacting to keep the prong 5 prcssed toward the center of the shell and inengagement with the notch c. The case also has a shoulder, c, whichstrikes against the shell and limits its position therein. Thebobbin-case isslotted diagonally from its rear toward its front end, asshown at 12, Fig. 2, to enable the thread from the spool or bobbin inthe case to be drawn under the tension spring 14, attached to the caseby a screw, 15, g

the case preferably having shoulders between which the said spring islocated, the shoulders preventing the turning of the spring aside. Thelip c of the case is inserted in the pocket 3, and then the other end ofthe case is pushed or swung back into the opening of the shuttle-shell,and is there caught by the prong of the latch, it entering the notch 0.Turning the bobbin-case back in this way while its lip is held in thepocket somewhat strains the parts, so that, as soon as the latch ismoved to release its prong from the case, the latter starts forward andturns out from the shell, thus making it easy for the operator to removethe case and renew or change the bobbin. The guard If prevents the loopof needle-thread from coming against the raceway ncar where the edge ofthe shuttle-shell bears against the said race-way, the said thread soheld away from the race by the guard not being liable to be soiled byoil used between the shuttle-shell and race. The shuttlethread afterleaving the tension device is led through the slot 2 of the bracket 0the curved outer edge of the latter acting in spreading the loop ofneedle-thread.

. \Ve claim- 1. The elongated elliptical shell I), having an elongatedcentral opening, one end of which is provided with the pocket 3, and theelongated cylindrical bobbin-case, provided. at one end with thecentrally-located projection c, and notched at one side, as at 0combined with the latch to engage the notch of the said bobbin-ease andhold it in the shell, substantially as described.

2. The shell I), provided with the pocket 3, and notched at 4 for thereception of one of the journals of the bobbin, and the latch and springto turn it, combined with the bobbinease having the projection c andnotch 0, substantially as described.

3. The shell Z, provided with the pocket 3, and notched at 4 for thereception of one of the journals of the bobbin, and the latch and springto turn it, combined with the bobbincasc having the projection c andnotch c, and slotted at 12, and with the tension-spring, to operatesubstantially as described.

4. The elongated or elliptical shell I), shaped substantially as shown,and provided with a point, If, and a pocket, 3, and the bobbincaseprovided with the end projection, c, and shoulder c, and having aradially-extended bracket provided with a curved edge, and

slotted at 2, combined with means, substantially as described, to holdthe bobbin-case in said shell.

The elongated elliptical shell I), having an elongated central openingfor the reception of the bobbin-case, and provided with a guard, I), atthe rear side of and parallel with the pocket of the said case, combinedwith a raceway or guide, a, in which the shuttle travels, the said guardbeing extended over the rear side of the said raceway, and serving tokeep the needlethread away from the said raceway and from the edge ofthe shell, all substantially as described.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

HORACE \VEBUTER HADLEY. WILLIAM L. GROUT. \Vitnesses:

Enw. M. BUELL, G. 1. FIELD.

